Egg-beater.



M. CfWITHERBEE. EGG BEATER. APPLICATION FILED MAR. 3h l9l6.

I 1,250,539. Patented Dec. 18,1917.

MARY CHASE WI HE BEE, or WEST NEwToN, MASSACHUSETTS.

' EGG-BEATER,

I To all whom it may concern." T

Be it known that I, MARYCHASE WITHER- BEE, a citizen of theUnited States, residing atWest Newton, in the county of Middlesex and State of Massachusetts, haveinvented certain new and useful Improvements in Egg-Beaters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled-in the art-to which it appertains to make and use the same.

My invention relates to egg-beaters.-

That is, to devices for beating eggs or other material. Its object is to provide a beater which shall, in accordance with the familiar practice of the housewife, beat up the egg or other material from the bottom upward and also shall beat or drive the material in the same direction throughout the operation. To this end it comprises the com# binations of parts recited in the appended claims.

In the drawings:

Figure 1 is a front elevation;

Fig. 2 is a side elevation of a part of the sleeve;

Fig. 3 is a sectional detail looking down upon the main whisk or beater; and

Fig. 4 is a detail cross section of the main whisk or beater.

I have found, contrary to the usual practice with egg-beaters, that to accomplish the desired purpose, that is, to beat the material so that it is light, it should be beaten upward and not merely whirled around, and that as much air as possible shall enter the material while being treated. I have discovered also that the material should be beaten in the same direction throughout the operation and not by means of two instruments operating in opposite directions as in the customary egg-beater.

In the drawings, 10 represents the customary handle to which is secured a drive wheel 11 with a handle attachment 12, it not being deemed necessary to illustrate the familiar driving handle in this case. I have also indicated,-rather than illustrated, an idler 13 lying behind the handle-iron and engaging the driving gear-wheel.

It would be feasible to have the handle rod run beyond the driving wheel and rest upon the bottom of the vessel holding the material to be treated. I prefer, however, to follow the familar custom and provide a separate cast arm which enters the handle Specification otLettersPatent. PatentedDec. 18,1917. Application filed March 31, 1916. Seria1No. 87,929 V 10 and which bearsthe'axis for thedriving gea1=wheel.' At the bottom is'secured to this hearing casting, preferablyby a set screw as illustrated, a separate shaft 100.

Surrounding this shaft 100 is a sleeve 14 Which'rests as indicated on a shoulder on the bottom of the shaft and which carries at the top a driving pinion 15. his obvious that through the handle the'driving gear may be rotated, being guided in its movement by the idler 13 while it rotates the gear wheel 15 and thus rapidly rotatesthe sleeve.

These parts are familiar and my invention resides'in the arrangement of the whisks or beaters on the sleeve.

I have illustrated on opposite sides of the leeve two reversely arranged whisks or beaters 16, 17, which, in my preferred form, have a backing of a curved rod attached at the top in any manner to the sleeve and at the bottom to a vertical rod, 18, 19, one on each side of the shaft, parallel with the sleeve and secured thereto at the top, as for example, by a short sleeve. Each of these curved rods, 16, 17, has a substantially spoonshaped plate 20, 21, extending out and preferably bent slightly at the outer edge 22, 23, so that it will extend down'toward the bottom of the receptacle in which thevmaterial is contained. In cross section the spoonplate is roughly ogee shaped. as indicated in the cross section shown in Fig. 4. Within the outer whisks are placed bent rod beaters 24 and 25, 26 and 27 which standout from the sleeve on opposite sides in reverse direc- V 'tions, preferably, as illustrated, and which series so that the inner one of the beater rods shall project into a plane the farthest beyond the plane of the Sleeve, the second one somewhat inside-the outer line, and the third rod carrying the spoon-shaped part still farther within the line and nearly within a plane corresponding with the outer wall of the sleeve.

In the operation of the beater the material is rotated in one way only and while the outer layers arethus rotated the lower layer is also rotated and at the same time thrown up into the rotating mass,this action permitting the air to enter and at the same time permitting the action to be rapid and ef fective.

It is obvious that these relative arrange ments of the whlsks or heaters may vary direction while at the same time beating it upward. It is also obvious that I use the term egg-beater inthe specification and the succeeding claims merely as a convenient designation of my device which may be em ployed' to treat various materials.

I claim:

1. Inan egg-beater or similar device, the combination with a handle, shaft and operat- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

ing parts, of Whisks or beaters curved out \vardly and also curved in different planes with reference to the shaft, and arranged in ing a substantiallyspoon-shaped plate eX-' tending outwardly and downwardly and a series of curved beaters above the plate-. a

bearing beaters, standing 'out on opposite :-:1des in reverse directions and arranged so that the several beaters project outward through a plane beyond the sleeve.

In testimony whereof I have hereunto signed by name,

MARY CHASE VVITHERBEE.

Washington, D. 6." 

